Don't feel too bad... half the people that own arrangers of ANY kind can't figure out the OS too well
Go to any support forum for proof if you don't believe me.
I guess the difference is, if something SONICLY is so good that you absolutely MUST use it, however long it takes you to unlearn your habits from the previous, it is worth the work. No doubt, if I ever make a move to Korg or Yamaha, it will be me pulling my hair out for quite a while
but if the sound is THAT good, for me at least, it will make me knuckle down and do it.
It's all about MUSIC and sound, after all. Nobody in the audience cares how good the OS is
Just how good you sound.